RE: OS 91 Compression
Hi,
Hawkflyer, in relation to your particular problem an inflight mixture control would not have been any help. There are very few DF flyers in Australia running inflight mixture controls. They were popular a few years back when everyone wanted to go 200mph+ and wanted to screw every last bit of speed out of the aircraft. My suggestion would be to get rid of the fuel filter as any slight obstruction will cause a lean run with consequential damage. I filter my fuel through the pickup in the fuel container, again just befor it enters the pump and a third time after the pump. I have always run pitot pressure in a Ramtec fan and have flown from all different surfaces and have never had a problem.
Tim, personaly I would stick with the standard OS remote needle. I have seen guys have far more trouble tuning with the BVM needle than most with the OS.
regards,
Russell.